code: def dr_hill_zero_background(x, theta, eta, kappa):
      return (theta * x**eta) / (kappa**eta + x**eta)
  
imports: import scipy
  import logging
  import numpy
  import time
  from scipy import optimize
label_desc: Use image node_id 5 for calling a global function with example usage: dr_hill_zero_background(x, theta, eta, kappa) and returns: unknown